Green anacondas, the heaviest snakes on Earth, thrive in South American swamps and rivers. These apex predators, reaching ...

Trending News: A video showing a giant anaconda in the Amazon went viral. A tourist in Thailand found snakes outside his hotel room. Another video captured a snake f ...

The Burmese python is probably the largest snake you'll find in the U.S., but the South American anaconda leaves no doubt which is the biggest.

Efforts to control their numbers include hunting challenges and research into their behavior, with bobcats surprisingly preying on python eggs.